iRobot Roomba S9 vs Roborock S4
Cleaning
| iRobot Roomba S9 | Roborock S4 | |
|---|---|---|
 |  | |
| Cleaning type | Dry | Dry |
| Suction power | 2200 Pa | 2000 Pa |
| Cleaning area | 200 m² | 250 m² |
| Number of side brushes | 1 piece(s) | 1 piece(s) |
| Overcoming the thresholds | up to 2 cm | up to 1.5 cm |
| Self cleaning base | Yes | No |
| Noise level | 62 dB | 60 dB |
| Turbo brush | Yes | Yes |
| Usage Area | Hard Floor+Carpet | Hard Floor+Carpet |
| Power | n/a | 58 W |
| Keep Out Zones | Vacuum | Vacuum |
| Cleaning zone limiter | Mobile Application | Mobile Application |
| Climbing Threshold | 20 mm | n/a |
| Wet Mopping | n/a | No |
| Vibrating mopping pad | No | No |
| Cleaning time calculation | Yes | Yes |
| 3-Point Cleaning System | Yes | n/a |
| Cleaning Brush | n/a | Yes |
| Edge Cleaning | Yes | n/a |
| Effective on Animal Hair | n/a | Yes |
| Bump Prevention | n/a | Yes |
| SPOT Mode | Yes | n/a |
Technical specifications
| iRobot Roomba S9 | Roborock S4 | |
|---|---|---|
| Product Type | Robot Vacuum | Robot Vacuum |
| Wi-fi | Yes | Yes |
| Voice Announcements | n/a | Yes |
| Time Scheduling | Yes | Yes |
Navigation
| iRobot Roomba S9 | Roborock S4 | |
|---|---|---|
| Mapping | Yes | Yes |
| Mapping Type | VSLAM | Laser (LDS) |
| Smart Navigation | Yes | n/a |
| Manual robot control (from the app) | Yes | Yes |
| Selective Room Cleaning | Yes | Yes |
| Setting the suction power and water level for each room | No | No |
| Storing multiple cleaning maps in memory (cleaning multiple floors) | Yes | Yes |
Control
| iRobot Roomba S9 | Roborock S4 | |
|---|---|---|
| Voice prompts | Yes | Yes |
| Voice Assistant Support |
| Xiao Ai |
| Scheduled cleaning | Yes | Yes |
| Manual control (from the button on the vacuum cleaner) | No | Yes |
| Control from smartphone | Yes | Yes |
| Remote control | No | No |
| Suction Control | n/a |
|
Integration with cloud services
| iRobot Roomba S9 | Roborock S4 | |
|---|---|---|
| Amazon Alexa | Yes | Yes |
| Google Home | Yes | Yes |
| Samsung SmartThings | No | No |
| Xiaomi Mi Home | No | No |
Sensors
| iRobot Roomba S9 | Roborock S4 | |
|---|---|---|
| Carpet detection | No | No |
| Dirt detection | Yes | No |
| Cliff Sensor | Yes | Yes |
Battery
| iRobot Roomba S9 | Roborock S4 | |
|---|---|---|
| Battery type | Li-ion | Li-ion |
| Battery Capacity | 3300 mAh | 5200 mAh |
| Battery life up to | 120 Minutes | 150 min |
| Charging time | 3 Hours | 5 Hours |
| Fast charging | No | No |
| Battery Voltage | n/a | 14.4 V |
| Auto Recharge | Yes | Yes |
Bin
| iRobot Roomba S9 | Roborock S4 | |
|---|---|---|
| Dustbin Capacity | 400 ml | 500 ml |
| Bin Station | No | No |
| Dust collector filling indicator | Yes | No |
| Washable Dustbin | Yes | n/a |
Filters
| iRobot Roomba S9 | Roborock S4 | |
|---|---|---|
| Cyclone Filter | No | No |
| Other Filters | AeroForce | n/a |
Dimensions and equipment
| iRobot Roomba S9 | Roborock S4 | |
|---|---|---|
| Width | 311 mm | 355 mm |
| Height | 89 mm | 96 mm |
| Depth | 311 mm | 350 mm |
| Weight | 3.9 kg | 3.8 kg |
| Color | Gold | Black |
| Included Equipment |
|
|
| Additionally |
| n/a |
